Improvement in rotating harrows



- '2 sheets-sheetl. s. M. GARVER.

'Revolving Harrow... Nq. 39,806.. Patented sept. s. 186s.

WMA/5553: /Nvf/vrom 2 Sheets-Sheet `2. S. M. GARVER.

Revolving Harrow.

No.39 ,806. Patented Sept. 8. 1863.

/NVNOR f N'FETERS. PHOTOLITHOGRAPHER. WASHINGTON. Dv C.

NITED STATES PATENT OFFICE;

S. M. GARVER, OF MONTIELLO, ILLINOIS.

IMPROVEMENT IN ROTATING HARRows.

To all whom. it may concern: v Beit known that I, S. M.. GARVER, of Monticello, in the county of Pratt and State of 1llinois, have invented a new and useful Improvement in Harrows; and I do hereby declare that thelfollowing is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l represents a vertical central section, and Fig. 2 a plan, of my machine.

Similar letters of reference in` each of the several figures indicate corresliiondinp,` parts.

The nature of my invention consists in the relative arrangementot" a harrow, suspenders, adjustable lever, and adjustable hand-levers in l the manner and for the purposes hereinafter to be described.

Io enable others skilled in the art to make 4 and use my invention, I will proceed to describe its construction and operation.

A circular barrow, a, provided with the usual teeth, b, is free to turn on a pivot, c, projecting downward from a cross-bar, el. This cross-bar is hung to the forward part of the main frame by means of two connecting-rods, i, forming a link which allows the cross-bar to play vertically. rIhe cross-bar is also hung to the rear ends ot' two levers, f, by means of suspenders e, the latter being guided in their vertical play by staples r, fastened to the main frame l1..

The rear ends of the leversf, as well as the upper ends'of the suspenders, are each provided with several holes, as seen in Fig. 1. By this means the harrow can not only be adjusted to penetrate to a greater or less depth, but it can also be set at a proper distance from the center ot the machine to obtain the equilibrium of the whole machine. The levers f have their fulcra in standards g, projecting upward from mainframe h.

A cross-bar, y,4 is pivoted to the forward ends of the-leversf, and a suspender, j, projecting upward from said crossbar, is hung to a lever, k.

The pivots at the end ofthe cross-bar, turning iu the ends of the levers ,can be elevatedV Vor depressed any desired distance by means c-the forward end of the lever being pivoted j to a standard, a, projecting from the tongue o-is depressed, so as to lift and keep the harrow suspended above the ground.

'lhe handle is adjustable by means of a pin inserted through one of a series ot' holes in a slotted standard, m, and is arranged near the drivers seat p, so that he cnn operate it with convenience.

As it is desirable to adjust the machine to diti'erent-sized horses and yet keep the handle lof lever 7c at the same average height convenient to the drivers hand, lanother adjustment is provided by which the harrow can be raised or lowered, to wit: The standards g are provided with a series'of holesl for the insertion of the fulcrum-pins of leversf, and the Suspenders c, adjustable lever j', and adjustable hand-lever 7c, in the manner and for the purposes set forth.

S. M. GARVER.

Witnesses:

N. E. RHOADES, L. J. BOND. 

